Sets the behavior for when a Window or View navigates or redirects to a matching URL
'allow': The content url is allowed.
'block': The content url is blocked.
'browser': The content url is blocked and it is opened in the system's default web browser.
Sets the behavior for when a Window or View navigates or redirects to a matching URL
'allow': The content url is allowed. 'block': The content url is blocked. 'browser': The content url is blocked and it is opened in the system's default web browser.